GoogleMap

1/**
2 * Ermittelt die Geo-Informationen aus einem Address-String
3 * @param location : Addresse
4 * @return GeoPoint : Koordinaten der Addresse
5 */
6 public GeoPoint getCoordsByLocation(String location){
7 private String address = "";
8 private GeoPoint coords = null;
9 //Formatierung der Eingabe
10 try {
11 address = URLEncoder.encode(location,"UTF-8");
12 } catch (UnsupportedEncodingException e1) {
13 e1.printStackTrace();
14 address = location;
15 }
16
17 //Ausführung des Http-Requests
18 HttpClient httpClient = new DefaultHttpClient();
19 HttpGet httpGet = new HttpGet("http://maps.google.com/maps/api/geocode/json?address='"+address+"'&sensor=false");
20 HttpResponse response;
21
22 try{
23 response = httpClient.execute(httpGet);
24 HttpEntity entity = response.getEntity();
25
26 if (entity != null){
27 InputStream instream = entity.getContent();
28 BufferedReader reader = new BufferedReader(new InputStreamReader(instream));
29 StringBuilder sb = new StringBuilder();
30
31 String line = null;
32 while ((line = reader.readLine()) != null)
33 sb.append(line);// + "n");
34 String result = sb.toString();
35 instream.close();
36
37 //Auslesen des Resultats
38 if (((String)(new JSONObject(result)).getString("status")).equals("OK")){
39 //valides Resultat
40 Double lat = (Double) (new JSONObject(result)).getJSONArray("results").
41 getJSONObject(0).getJSONObject("geometry").getJSONObject("location").get("lat");
42 Double lng = (Double) (new JSONObject(result)).getJSONArray("results").
43 getJSONObject(0).getJSONObject("geometry").getJSONObject("location").get("lng");
44
45 //Position auf empfangene Koordinaten setzen
46 coords = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6));
47 }
48 }
49 //Fehler abfangen
50 }catch (ClientProtocolException e) {
51 e.printStackTrace();
52 } catch (IOException e) {
53 e.printStackTrace();
54 } catch (JSONException e) {
55 e.printStackTrace();
56 } catch (Exception e){
57 e.printStackTrace();
58 }finally{
59 httpGet.abort();
60 }
61 //Rückgabe der Position
62 return coords;
63 }